This configuration parameter specifies the number of milliseconds the agent waits between checks to see if a client's request has been completed.
Request completion polling is necessary to eliminate race conditions in operating environments such as Linux that don't have pselect implemented in the kernel. This polling mechanism should be disabled if the operating system has an atomic pselect.
The parameter value must be an integer zero or greater. A value of zero turns off polling. For example:
If this parameter is not defined in the configuration file, its default value is 100 milliseconds.